Water scavenger pouch
US4588505A · kind A · utility
51Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | May 7, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water absorption pouch comprising an open-mesh, hydrocarbon impervious, cloth (e.g., nylon, polypropylene, fiberglass) container confining a water absorbent polymer phase (e.g., mixture of an alkali metal base hydrolyzed starch/acrylonitrile copolymer or alkali metal alkylcarboxamide and a carboxylmethyl or hydroxyethyl cellulose) and sufficient ballast to make the pouch settle to the bottom of a hydrocarbon liquid. Such a water absorption pouch can be tethered and lowered to the bottom of a hydrocarbon containing vessel to absorb a low lying water phase and then removed, dehydrated by squeezing and reused repeatedly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.